Mirror von
https://github.com/PaperMC/Paper.git
synchronisiert 2024-12-21 14:00:11 +01:00
391 Zeilen
19 KiB
Diff
391 Zeilen
19 KiB
Diff
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Spottedleaf <Spottedleaf@users.noreply.github.com>
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Date: Sat, 15 Jun 2019 08:54:33 -0700
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Subject: [PATCH] Fix World#isChunkGenerated calls
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Optimize World#loadChunk() too
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This patch also adds a chunk status cache on region files (note that
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its only purpose is to cache the status on DISK)
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diff --git a/src/main/java/net/minecraft/server/level/ChunkProviderServer.java b/src/main/java/net/minecraft/server/level/ChunkProviderServer.java
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index 3425ae4d036bbfa413e60eccfd6d82b8dae3775b..34b68443ff300f8626e9f7a8335cff75580bebfc 100644
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--- a/src/main/java/net/minecraft/server/level/ChunkProviderServer.java
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+++ b/src/main/java/net/minecraft/server/level/ChunkProviderServer.java
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@@ -52,7 +52,7 @@ public class ChunkProviderServer extends IChunkProvider {
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private final WorldServer world;
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public final Thread serverThread; // Paper - private -> public
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private final LightEngineThreaded lightEngine;
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- private final ChunkProviderServer.a serverThreadQueue;
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+ public final ChunkProviderServer.a serverThreadQueue; // Paper private -> public
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public final PlayerChunkMap playerChunkMap;
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private final WorldPersistentData worldPersistentData;
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private long lastTickTime;
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@@ -317,6 +317,21 @@ public class ChunkProviderServer extends IChunkProvider {
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return ret;
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}
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+
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+ @Nullable
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+ public IChunkAccess getChunkAtImmediately(int x, int z) {
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+ long k = ChunkCoordIntPair.pair(x, z);
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+
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+ // Note: Bypass cache to make this MT-Safe
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+
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+ PlayerChunk playerChunk = this.getChunk(k);
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+ if (playerChunk == null) {
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+ return null;
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+ }
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+
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+ return playerChunk.getAvailableChunkNow();
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+
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+ }
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// Paper end
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@Nullable
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@@ -770,7 +785,7 @@ public class ChunkProviderServer extends IChunkProvider {
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return this.p;
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}
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- final class a extends IAsyncTaskHandler<Runnable> {
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+ public final class a extends IAsyncTaskHandler<Runnable> { // Paper - package -> public
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private a(World world) {
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super("Chunk source main thread executor for " + world.getDimensionKey().a());
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diff --git a/src/main/java/net/minecraft/server/level/PlayerChunk.java b/src/main/java/net/minecraft/server/level/PlayerChunk.java
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index 9891cf98f8c740f84f9135ee8176e67abb648b3a..6bced8533df49d7bfdb32dfa0caad9d788ffc2c8 100644
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--- a/src/main/java/net/minecraft/server/level/PlayerChunk.java
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+++ b/src/main/java/net/minecraft/server/level/PlayerChunk.java
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@@ -142,6 +142,19 @@ public class PlayerChunk {
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Either<IChunkAccess, PlayerChunk.Failure> either = (Either<IChunkAccess, PlayerChunk.Failure>) statusFuture.getNow(null);
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return either == null ? null : (Chunk) either.left().orElse(null);
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}
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+
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+ public IChunkAccess getAvailableChunkNow() {
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+ // TODO can we just getStatusFuture(EMPTY)?
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+ for (ChunkStatus curr = ChunkStatus.FULL, next = curr.getPreviousStatus(); curr != next; curr = next, next = next.getPreviousStatus()) {
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+ CompletableFuture<Either<IChunkAccess, PlayerChunk.Failure>> future = this.getStatusFutureUnchecked(curr);
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+ Either<IChunkAccess, PlayerChunk.Failure> either = future.getNow(null);
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+ if (either == null || !either.left().isPresent()) {
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+ continue;
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+ }
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+ return either.left().get();
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+ }
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+ return null;
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+ }
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// Paper end
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public CompletableFuture<Either<IChunkAccess, PlayerChunk.Failure>> getStatusFutureUnchecked(ChunkStatus chunkstatus) {
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diff --git a/src/main/java/net/minecraft/server/level/PlayerChunkMap.java b/src/main/java/net/minecraft/server/level/PlayerChunkMap.java
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index e10c661755796e9c4e40f62a649b45dd1a71b46c..ed454f8dff7b0d94d4bde914a6f26bb019e82296 100644
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--- a/src/main/java/net/minecraft/server/level/PlayerChunkMap.java
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+++ b/src/main/java/net/minecraft/server/level/PlayerChunkMap.java
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@@ -993,12 +993,61 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
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}
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@Nullable
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- private NBTTagCompound readChunkData(ChunkCoordIntPair chunkcoordintpair) throws IOException {
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+ public NBTTagCompound readChunkData(ChunkCoordIntPair chunkcoordintpair) throws IOException { // Paper - private -> public
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NBTTagCompound nbttagcompound = this.read(chunkcoordintpair);
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+ // Paper start - Cache chunk status on disk
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+ if (nbttagcompound == null) {
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+ return null;
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+ }
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+
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+ nbttagcompound = this.getChunkData(this.world.getTypeKey(), this.l, nbttagcompound, chunkcoordintpair, world); // CraftBukkit
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+ if (nbttagcompound == null) {
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+ return null;
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+ }
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+
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+ this.updateChunkStatusOnDisk(chunkcoordintpair, nbttagcompound);
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+
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+ return nbttagcompound;
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+ // Paper end
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+ }
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+
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+ // Paper start - chunk status cache "api"
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+ public ChunkStatus getChunkStatusOnDiskIfCached(ChunkCoordIntPair chunkPos) {
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+ RegionFile regionFile = this.getIOWorker().getRegionFileCache().getRegionFileIfLoaded(chunkPos);
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+
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+ return regionFile == null ? null : regionFile.getStatusIfCached(chunkPos.x, chunkPos.z);
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+ }
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+
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+ public ChunkStatus getChunkStatusOnDisk(ChunkCoordIntPair chunkPos) throws IOException {
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+ RegionFile regionFile = this.getIOWorker().getRegionFileCache().getFile(chunkPos, true);
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+
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+ if (regionFile == null || !regionFile.chunkExists(chunkPos)) {
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+ return null;
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+ }
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+
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+ ChunkStatus status = regionFile.getStatusIfCached(chunkPos.x, chunkPos.z);
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+
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+ if (status != null) {
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+ return status;
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+ }
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+
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+ this.readChunkData(chunkPos);
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- return nbttagcompound == null ? null : this.getChunkData(this.world.getTypeKey(), this.l, nbttagcompound, chunkcoordintpair, world); // CraftBukkit
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+ return regionFile.getStatusIfCached(chunkPos.x, chunkPos.z);
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}
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+ public void updateChunkStatusOnDisk(ChunkCoordIntPair chunkPos, @Nullable NBTTagCompound compound) throws IOException {
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+ RegionFile regionFile = this.getIOWorker().getRegionFileCache().getFile(chunkPos, false);
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+
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+ regionFile.setStatus(chunkPos.x, chunkPos.z, ChunkRegionLoader.getStatus(compound));
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+ }
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+
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+ public IChunkAccess getUnloadingChunk(int chunkX, int chunkZ) {
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+ PlayerChunk chunkHolder = this.pendingUnload.get(ChunkCoordIntPair.pair(chunkX, chunkZ));
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+ return chunkHolder == null ? null : chunkHolder.getAvailableChunkNow();
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+ }
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+ // Paper end
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+
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boolean isOutsideOfRange(ChunkCoordIntPair chunkcoordintpair) {
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// Spigot start
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return isOutsideOfRange(chunkcoordintpair, false);
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diff --git a/src/main/java/net/minecraft/world/level/chunk/ChunkStatus.java b/src/main/java/net/minecraft/world/level/chunk/ChunkStatus.java
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index 5e4c162654349f884becc10e8fbae4ded6889deb..711308cf84a816f09d116a7414f9cbee803c8713 100644
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--- a/src/main/java/net/minecraft/world/level/chunk/ChunkStatus.java
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+++ b/src/main/java/net/minecraft/world/level/chunk/ChunkStatus.java
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@@ -193,6 +193,7 @@ public class ChunkStatus {
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return this.s;
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}
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+ public ChunkStatus getPreviousStatus() { return this.e(); } // Paper - OBFHELPER
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public ChunkStatus e() {
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return this.u;
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}
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@@ -213,6 +214,17 @@ public class ChunkStatus {
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return this.y;
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}
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+ // Paper start
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+ public static ChunkStatus getStatus(String name) {
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+ try {
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+ // We need this otherwise we return EMPTY for invalid names
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+ MinecraftKey key = new MinecraftKey(name);
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+ return IRegistry.CHUNK_STATUS.getOptional(key).orElse(null);
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+ } catch (Exception ex) {
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+ return null; // invalid name
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+ }
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+ }
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+ // Paper end
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public static ChunkStatus a(String s) {
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return (ChunkStatus) IRegistry.CHUNK_STATUS.get(MinecraftKey.a(s));
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}
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diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/ChunkRegionLoader.java b/src/main/java/net/minecraft/world/level/chunk/storage/ChunkRegionLoader.java
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index 69bc9dc18bab157851d8080a672504598e8572a8..98bc26c7ae01884eb53766e72fc7cbabbf065e6e 100644
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--- a/src/main/java/net/minecraft/world/level/chunk/storage/ChunkRegionLoader.java
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+++ b/src/main/java/net/minecraft/world/level/chunk/storage/ChunkRegionLoader.java
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@@ -462,6 +462,17 @@ public class ChunkRegionLoader {
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}
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// Paper end
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+ // Paper start
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+ public static ChunkStatus getStatus(NBTTagCompound compound) {
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+ if (compound == null) {
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+ return null;
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+ }
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+
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+ // Note: Copied from below
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+ return ChunkStatus.getStatus(compound.getCompound("Level").getString("Status"));
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+ }
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+ // Paper end
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+
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public static ChunkStatus.Type a(@Nullable NBTTagCompound nbttagcompound) {
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if (nbttagcompound != null) {
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ChunkStatus chunkstatus = ChunkStatus.a(nbttagcompound.getCompound("Level").getString("Status"));
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diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/IChunkLoader.java b/src/main/java/net/minecraft/world/level/chunk/storage/IChunkLoader.java
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index 247d14a3ca56734bbbf4dc0ec247d60a1f241e7a..d785f44cd503d4d91589f3fc4bc8dc805dff3d41 100644
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--- a/src/main/java/net/minecraft/world/level/chunk/storage/IChunkLoader.java
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+++ b/src/main/java/net/minecraft/world/level/chunk/storage/IChunkLoader.java
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@@ -25,7 +25,7 @@ import net.minecraft.world.level.dimension.DimensionManager;
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public class IChunkLoader implements AutoCloseable {
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- private final IOWorker a;
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+ private final IOWorker a; public IOWorker getIOWorker() { return a; } // Paper - OBFHELPER
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protected final DataFixer b;
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@Nullable
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private PersistentStructureLegacy c;
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diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFile.java b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFile.java
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index 00cef1c0bc19976a000389e57a1af5d93690c0e7..d50b9c9d030016f951e2ed7fb519250b7408c833 100644
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--- a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFile.java
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+++ b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFile.java
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@@ -27,6 +27,7 @@ import net.minecraft.SystemUtils;
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import net.minecraft.nbt.NBTCompressedStreamTools;
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import net.minecraft.nbt.NBTTagCompound;
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import net.minecraft.world.level.ChunkCoordIntPair;
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+import net.minecraft.world.level.chunk.ChunkStatus;
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import org.apache.logging.log4j.LogManager;
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import org.apache.logging.log4j.Logger;
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@@ -44,6 +45,30 @@ public class RegionFile implements AutoCloseable {
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protected final RegionFileBitSet freeSectors;
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public final File file; // Paper
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+ // Paper start - Cache chunk status
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+ private final ChunkStatus[] statuses = new ChunkStatus[32 * 32];
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+
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+ private boolean closed;
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+
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+ // invoked on write/read
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+ public void setStatus(int x, int z, ChunkStatus status) {
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+ if (this.closed) {
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+ // We've used an invalid region file.
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+ throw new IllegalStateException("RegionFile is closed");
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+ }
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+ this.statuses[getChunkLocation(x, z)] = status;
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+ }
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+
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+ public ChunkStatus getStatusIfCached(int x, int z) {
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+ if (this.closed) {
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+ // We've used an invalid region file.
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+ throw new IllegalStateException("RegionFile is closed");
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+ }
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+ final int location = getChunkLocation(x, z);
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+ return this.statuses[location];
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+ }
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+ // Paper end
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+
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public RegionFile(File file, File file1, boolean flag) throws IOException {
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this(file.toPath(), file1.toPath(), RegionFileCompression.b, flag);
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}
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@@ -380,11 +405,13 @@ public class RegionFile implements AutoCloseable {
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return this.getOffset(chunkcoordintpair) != 0;
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}
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+ private static int getChunkLocation(int x, int z) { return (x & 31) + (z & 31) * 32; } // Paper - OBFHELPER - sort of, mirror of logic below
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private static int g(ChunkCoordIntPair chunkcoordintpair) {
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return chunkcoordintpair.j() + chunkcoordintpair.k() * 32;
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}
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public void close() throws IOException {
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+ this.closed = true; // Paper
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try {
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this.d();
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} finally {
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diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileCache.java b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileCache.java
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index ab9f4d40fd1126a3d7ba5b16fdc6ab09de4a7fdb..55e7e983d2c760a8052d7b3ddbdc8447f619a60f 100644
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--- a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileCache.java
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+++ b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileCache.java
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@@ -28,7 +28,14 @@ public final class RegionFileCache implements AutoCloseable {
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this.c = flag;
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}
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- private RegionFile getFile(ChunkCoordIntPair chunkcoordintpair, boolean existingOnly) throws IOException { // CraftBukkit
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+
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+ // Paper start
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+ public RegionFile getRegionFileIfLoaded(ChunkCoordIntPair chunkcoordintpair) {
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+ return this.cache.getAndMoveToFirst(ChunkCoordIntPair.pair(chunkcoordintpair.getRegionX(), chunkcoordintpair.getRegionZ()));
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+ }
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+
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+ // Paper end
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+ public RegionFile getFile(ChunkCoordIntPair chunkcoordintpair, boolean existingOnly) throws IOException { // CraftBukkit // Paper - private > public
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long i = ChunkCoordIntPair.pair(chunkcoordintpair.getRegionX(), chunkcoordintpair.getRegionZ());
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RegionFile regionfile = (RegionFile) this.cache.getAndMoveToFirst(i);
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@@ -175,6 +182,7 @@ public final class RegionFileCache implements AutoCloseable {
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try {
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NBTCompressedStreamTools.a(nbttagcompound, (DataOutput) dataoutputstream);
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+ regionfile.setStatus(chunkcoordintpair.x, chunkcoordintpair.z, ChunkRegionLoader.getStatus(nbttagcompound)); // Paper - cache status on disk
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regionfile.setOversized(chunkcoordintpair.x, chunkcoordintpair.z, false); // Paper - We don't do this anymore, mojang stores differently, but clear old meta flag if it exists to get rid of our own meta file once last oversized is gone
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} catch (Throwable throwable1) {
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throwable = throwable1;
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diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
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index ec9f9fdf1be4f1e68eea5554a6721efd11a53958..d46c513512c25e55ccdb0be16524f19444c358c5 100644
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--- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
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+++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
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@@ -19,6 +19,7 @@ import java.util.Objects;
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import java.util.Random;
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import java.util.Set;
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import java.util.UUID;
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+import java.util.concurrent.CompletableFuture;
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import java.util.function.Predicate;
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import java.util.stream.Collectors;
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import net.minecraft.core.BlockPosition;
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@@ -419,8 +420,22 @@ public class CraftWorld implements World {
|
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@Override
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public boolean isChunkGenerated(int x, int z) {
|
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+ // Paper start - Fix this method
|
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+ if (!Bukkit.isPrimaryThread()) {
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+ return CompletableFuture.supplyAsync(() -> {
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+ return CraftWorld.this.isChunkGenerated(x, z);
|
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+ }, world.getChunkProvider().serverThreadQueue).join();
|
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+ }
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+ IChunkAccess chunk = world.getChunkProvider().getChunkAtImmediately(x, z);
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+ if (chunk == null) {
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+ chunk = world.getChunkProvider().playerChunkMap.getUnloadingChunk(x, z);
|
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+ }
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+ if (chunk != null) {
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+ return chunk instanceof ProtoChunkExtension || chunk instanceof net.minecraft.world.level.chunk.Chunk;
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+ }
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try {
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- return world.getChunkProvider().getChunkAtIfCachedImmediately(x, z) != null || world.getChunkProvider().playerChunkMap.read(new ChunkCoordIntPair(x, z)) != null; // Paper (TODO check if the first part can be removed)
|
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+ return world.getChunkProvider().playerChunkMap.getChunkStatusOnDisk(new ChunkCoordIntPair(x, z)) == ChunkStatus.FULL;
|
||
|
+ // Paper end
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||
|
} catch (IOException ex) {
|
||
|
throw new RuntimeException(ex);
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|
}
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@@ -531,20 +546,48 @@ public class CraftWorld implements World {
|
||
|
@Override
|
||
|
public boolean loadChunk(int x, int z, boolean generate) {
|
||
|
org.spigotmc.AsyncCatcher.catchOp("chunk load"); // Spigot
|
||
|
- IChunkAccess chunk = world.getChunkProvider().getChunkAt(x, z, generate || isChunkGenerated(x, z) ? ChunkStatus.FULL : ChunkStatus.EMPTY, true); // Paper
|
||
|
+ // Paper start - Optimize this method
|
||
|
+ ChunkCoordIntPair chunkPos = new ChunkCoordIntPair(x, z);
|
||
|
|
||
|
- // If generate = false, but the chunk already exists, we will get this back.
|
||
|
- if (chunk instanceof ProtoChunkExtension) {
|
||
|
- // We then cycle through again to get the full chunk immediately, rather than after the ticket addition
|
||
|
- chunk = world.getChunkProvider().getChunkAt(x, z, ChunkStatus.FULL, true);
|
||
|
- }
|
||
|
+ if (!generate) {
|
||
|
+ IChunkAccess immediate = world.getChunkProvider().getChunkAtImmediately(x, z);
|
||
|
+ if (immediate == null) {
|
||
|
+ immediate = world.getChunkProvider().playerChunkMap.getUnloadingChunk(x, z);
|
||
|
+ }
|
||
|
+ if (immediate != null) {
|
||
|
+ if (!(immediate instanceof ProtoChunkExtension) && !(immediate instanceof net.minecraft.world.level.chunk.Chunk)) {
|
||
|
+ return false; // not full status
|
||
|
+ }
|
||
|
+ world.getChunkProvider().addTicket(TicketType.PLUGIN, chunkPos, 1, Unit.INSTANCE);
|
||
|
+ world.getChunkAt(x, z); // make sure we're at ticket level 32 or lower
|
||
|
+ return true;
|
||
|
+ }
|
||
|
|
||
|
- if (chunk instanceof net.minecraft.world.level.chunk.Chunk) {
|
||
|
- world.getChunkProvider().addTicket(TicketType.PLUGIN, new ChunkCoordIntPair(x, z), 1, Unit.INSTANCE);
|
||
|
- return true;
|
||
|
+ net.minecraft.world.level.chunk.storage.RegionFile file;
|
||
|
+ try {
|
||
|
+ file = world.getChunkProvider().playerChunkMap.getIOWorker().getRegionFileCache().getFile(chunkPos, false);
|
||
|
+ } catch (IOException ex) {
|
||
|
+ throw new RuntimeException(ex);
|
||
|
+ }
|
||
|
+
|
||
|
+ ChunkStatus status = file.getStatusIfCached(x, z);
|
||
|
+ if (!file.chunkExists(chunkPos) || (status != null && status != ChunkStatus.FULL)) {
|
||
|
+ return false;
|
||
|
+ }
|
||
|
+
|
||
|
+ IChunkAccess chunk = world.getChunkProvider().getChunkAt(x, z, ChunkStatus.EMPTY, true);
|
||
|
+ if (!(chunk instanceof ProtoChunkExtension) && !(chunk instanceof net.minecraft.world.level.chunk.Chunk)) {
|
||
|
+ return false;
|
||
|
+ }
|
||
|
+
|
||
|
+ // fall through to load
|
||
|
+ // we do this so we do not re-read the chunk data on disk
|
||
|
}
|
||
|
|
||
|
- return false;
|
||
|
+ world.getChunkProvider().addTicket(TicketType.PLUGIN, chunkPos, 1, Unit.INSTANCE);
|
||
|
+ world.getChunkProvider().getChunkAt(x, z, ChunkStatus.FULL, true);
|
||
|
+ return true;
|
||
|
+ // Paper end
|
||
|
}
|
||
|
|
||
|
@Override
|